ci: Use Fedora 29 rather than Rawhide in CI
Rawhide breaks too much (for example, https://gitlab.gnome.org/GNOME/folks/-/jobs/141496, where coreutils was conflicting on upgrade).
Signed-off-by: Philip Withnall withnall@endlessm.com
Rawhide breaks too much (for example, https://gitlab.gnome.org/GNOME/folks/-/jobs/141496, where coreutils was conflicting on upgrade).
Signed-off-by: Philip Withnall withnall@endlessm.com